Police have released a sketch and are asking for the public's help in identifying a man who is suspected of sexually assaulting a Hoboken woman in the hallway of an apartment early Saturday.

Officials said the woman, in her 30s, was on her way home Saturday at 1 a.m., when she was sexually assaulted in the hallway of an apartment building at Monroe and 1st streets in Hoboken. The man ran in an unknown direction after the attack, said police.

Police are searching for a man in his late 30s to early 40s, approximately 5 feet 9 inches tall, with a husky build, weighing between 180 to 200 pounds. The man was described as having scruffy beard and goatee, brown eyes and blonde hair.

He was seen wearing a dark-colored sweatshirt, dark jeans, and a backwards fitted cap under the hood, police said.

Police are asking anyone with information to contact the Hudson County Prosecutor's Office Special Victims Unit at 201-915-1234. All calls will be kept confidential.

The Prosecutor's Special Victims Unit and the Hoboken Police are investigating the case.